When I figured out I was gay, which was when I was in college, having access to a college class like this would have helped me a LOT. And I can say that I would certainly not have been alone in that classroom.

Speaking from experience, reinventing the wheel is not a good use of one's limited time and energy, in so, so many ways.

I can also see substantial value in such a class for non-gay people, learning how to relate to and understand gay family members and friends, and how they experience the world.

And I find that most homophobes (and by that, I literally mean people who are scared of gay people) have never met a gay person, and don't know the first thing about gay people. Just think how a class like this could help people like that take the first step out of ignorance and fear toward understanding and co-existence.